Home / 1,266,037.90-1,899,048.65-319,409.53

Finding the Fourth Proportional to 1,266,037.90, 1,899,048.65 and 319,409.53

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Solution

The fourth proportional to 1,266,037.90, 1,899,048.65 and 319,409.53 is: 479,112.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,266,037.90 : 1,899,048.65 = 319,409.53 : x
  2. Step 2: Convert to fraction form
    1,266,037.90/1,899,048.65 = 319,409.53/x
  3. Step 3: Cross multiply
    1,266,037.90x = 1,899,048.65 × 319,409.53
  4. Step 4: Simplify right side
    1,266,037.90x = 606,574,230,398.97
  5. Step 5: Solve for x
    x = 606,574,230,398.97/1,266,037.90
  6. Step 6: Final answer
    x = 479,112.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.